Permutation-lock for automobiles.



H. MlTCHELL.

PERMUTATION LOCK FOR AUTOMOBILES.

APPLICATION FILED FEB. 26,191?- 1,261,266, 4 Patented Apr. 2, 1918.

2 SHEETS-SHEET l- 7111 f M' JLL 0 gvwenfoz X Z w/zwz'tm 1 W. H. MITCHELL.

PER'MUFATION LOOK FOR AUTOMOBILES.

APPLICATIQN FILED rte. 26. 1911.

1526 1,266. Patehted Apr. 2, 1918'.

' 2 SHEETSSHEET 2- ZZ Z0 l7 WILLIAM H. MITCHELL, OF ST. LOUIS, MISSOURI.

PERMU'IPATION-LOCK FOR AUTOMOBILES.

Specification of Letters Patent.

Patented Apr. 2, 1918.

Application filed February 26, 1917. Serial No. 151,036.

To all whom it may concern:

Be it known that 1, WILLIAM H. Mrrcn- ELL, a citizen ofthe United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in PermutationLocks for Automobiles; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in :the art to which it appertains to make and use the same.

This invention relates toautomobiles and has special reference to a permutation lock arranged to simultaneously control the spark circuit of the motor of the automobile and the supply of gasolene to said motor.

More specifically the invention relates to a combined switch and valve for automobiles and the like. i

7 One important object of the invention is to improve the general construction of de vices of this character.

A second important object of the invention is to provide an improved form of permutation switch for devices of this character.

A third important object of the invention is to provide an improved form of permutation valve for devices of this character.

A fourth important object of the invention is to provide a valve and switchso con structed and arranged in a novel manner that one permutation indicating device will control both the valve and the switch simultaneously. A

With the above and other objects in view, as will be hereinafter apparent the invention consists in general of certain novel de tails of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawing,and specifically claimed.

In the accompanying drawing, like characters of reference indicate like parts in the several views, and 2 1 Figure 1 is a face view of the device with the front removed. v

Fig. 2 is an edge view of the device with the casing in section to show the interior.

on the line 3-3 of right angles to Fig. 3.

Fig. 8 is a view showing the inside of one of the arms used herewith with the spring thereon.

In the embodiment of the invention herein illustrated there is disclosed a casing 10 having a circular flange 11 whcreon are mounted a series of stop pins 12 having rounded upper ends 13. Fixed within the casing is an insulating plate 14% and extend ing through this insulating plate and projecting above the flange 11 is a series of contact pins 15 provided at the bottom with binding screws 16 so that the wires 17 of the spark circuit may be connected to any two or these contact pins at will. These pins 15 are partially inclosed by a plate or the like 13. Extending through the center of the casing andjournaled thereinis a stub shaft 18 'whereon is a sleeve 19, the stub shaft and sleeve being independently rotatable. Projecting from both the stub shaft and the sleeve are arms 20 each having on its lower side a recess 21 adjacent its extremity and each of these arms swings over the pins 12 so that the rounded ends 13 are successively engaged in the recess of the respective arm, the arms being spring arms for the purpose of permitting this engagement and the disengagement of the arms from said pins.

Each of these arms is moreover provided with a button or thumb piece 22 so that it may be moved around the dial and adjacent the pins 12 are permutation numbers or characters 23 to enable the arm to be set to any desired number or character.

' Extending from the inner side of each of the arms 20 is a post 2 1 which is insulated therefrom by means of the washer of insulating material 24 and extending outward from this post is a spring contact 25 which engages successively with the pins as the arm is moved around the center. The lower extremity of each of the pins 24 contacts with a circular plate 25 of conducting materialmounted on the insulating plate 14:, said circular plate forming electrical connecting means for thc pins fla. It is to be noted that at the time the recess 21 is engaged on any one of the.rounded pinaends 13 the spring 25 will be in engagement with a corresponding pin 15.

It is preferred that the pins at the top, bottom and opposite sidesof the device'be shouldered as at26 so that they may, constitute starting points to enable the device to be set, by touch. At27 is a valve casing having an inlet 28 and an outlet 29. The inletis connected to the intake ,or supply pipe 30 from the gasolene tank, not shown, while the outlet is connected to a pipe3l running to the engine, also not shown. Within the, chamber of the valve 27 is a lower valve disk 32 having aport, therein which extends downwardly, as aty33,from its upper, side andthen transversely as at 34. There is also provided in this chamber an npper valve disk 35, having anotch 36 in one, edge. The valve disk 32 isfived on a shaft 37 which carries .a beveled gear 38 meshing with a similar beveled gear 39. fixed on theshaftIS. Thevalve disk .35 isgfixed upon .asIeeveglO which carries a beveled gear 41 .meshing with a beveled gear 42 on the sleeve19.

,By thismeans an operative connectionis established between each of the arms 20 and a respective valve, disk.

It is to be noted that the valvc is provided with the usual bonnet .43 andstrifling box 4ft and betweentheebonnet andthe upper .valve disk is ,a coil spring {l5 which holds the valve disks ,firmly together 7 and prevents any flow of gasolene from the pipe 30 tothepipe 31, whenthe valve is closed. ;I-lowever, when the arms 20 are in the proper position it will be seenthatthe notch 36 registers withthe port ,33 and also withthe pipe 30 while thcport 3 hregisters with the outlet 29. In this position the contact will also ,be in engagement with thosepontact pins which .areconnccted to the wires 17. Thus. the circuit for the spark arrangement of the automobile is clos'cd at the same time that the gasolenesupply is opene In order to prevent observationof the dial when set it is preferred that the front of the casing be, closed by coverfiti hinged to thecasingas at 4 7, and providedat 4:8 with a lock preferably offlthe pin type. Moreover ,foriconvenience sake vand for the pnrpose of improving the looks vof the device I prefer to make the cover &6 in the form of a hollow casing wherein may be mounted a clock, the casing of which is indicated at 49 and the front of which is protected by means of a glass plate 50 securely held in the cas ing forming the front of the device.

Fromthe foregoing it will be obvious that w,l, e n. the hands are set ;at the proper point the machine may be operated as the spark willsbe closedzurduthe gasolene turned on. WV-hen the operator desires to leave his machineeit is merely necessary to ppen the front of the casingand disarrange the hands from their position of operation whereupon both the spark circuitv will be opencd;-,and the .gasolene cut off. U dfir these circumstances even'if the operator forgets to-lock the door ,of the casing-and leaves the hands exposed it, will be practically impossible for any personto cperate the device asfit is intended to have twenty eight pins in the 0911- tact pin series.sothat-there willbe seven hund ed and fifty-six combinati ns "Ther ha th 2 bee pr vi ed a s m l and efficient device of the kind described and for the purpose specified.

,I is b ou th many m n r hang may be made in the for n .and construction of the invention without departingfrem the material principles thereof. It: is not there fore desiredto confinethe invention tothe exact form herein shown and described but it is wished to include all suchas properly come within the scope claimejd.

c Having thus described the invention, what is claimed as new is 1. Ina ,device of the character described, aninsulating, disk, acontact plate on said disk and adapted tobe connected to an e1ectricignition circuit, inner and outer series of pins supported concentrically of said plate, certain of the inner pins having electrical connection with the circuit, independently novable arms rotatably supported centrally of the disk and releasably engageable with the inner and enter pins, stud members carried by and insnlatedfromthe arms and frictionally engaging the plate and resilient contacts on the studmembers and parallel with, the arms to frictionally wipe the linner pins on movement of said armsfor the closing of the circuit when said contacts engage with certain of said pins.

2.1Inajdevice of the character described, a casing havinga closing at its front, an annular flange interiorlyof said casing, .an insulatingdisk carried by saidflange, a contact plate on said disk and adapted to'be electrically connected with anignition circuit, inner and outer series ofQpins onthe flange and disk, respectively, concentrically of the plate, certain of the innenpinshaving electrical connection with the circuit, certain of the outer pins being formed with reduced ends, independently movable arms rotatably supported centrally of the disk and releasablyengageable with the inner and outer pins, stud members carried by and insulated from the arms and frictionally engaging the plate and resilient contacts on the stud members and parallel with the arms to frictionally wipe the inner-pins 0n movement of said arms for the closing of the cir- 10 cuit when said contacts engage with certain of said pins, each of the arms being formed with recesses in its under face to receive the ends of the inner and outer pins.

In testimony whereof I aflix my signature in the presence of two Witnesses.

WILLIAM H. MITCHELL.

Witnesses:

JOHN L. TOT'ILEBEN,

H. W. MANTZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

